Amore senza anima (2017)

A woman finds out that her husband is cheating on her: the other woman is his secretary, younger and nicer than her. The woman wants to take revenge, so she plans to kill her and to lay the blame on her husband. When she kills the girl, she thinks that everything is going the right way, but there's something that upset her plan: the secretary's boyfriend placed in the woman's house some hidden cameras to check out his girlfriend as he thought that she was cheating on him.